Nautiloids are a group of marine cephalopods (Mollusca) which originated in the Late Cambrian and are represented today by the living Nautilus and Allonautilus. Fossil nautiloids are diverse …

The Nautilida constitute a large and diverse order of generally coiled nautiloid cephalopods that began in the mid Paleozoic and continues to the present with a single family, the Nautilidae …

On the right, shell of recent nautiloid cut in half to show inner chambers. Nautiloids first appeared about 500 million years ago. Then, there were many different species and they lived in the …

Nautilus (from Latin nautilus ' paper nautilus ', from Ancient Greek ναυτίλος nautílos 'little sailor') [3] are the ancient pelagic marine mollusc species of the cephalopod family Nautilidae. This is …

Nautiloids are a large and varied group of marine cephalopods (Mollusca) in the subclass Nautiloidea. They began in the later Cambrian. Nautilus is the only surviving genus. Nautiloids …

More than 2,500 species of nautiloids are known from the fossil record, though extant nautiloids species are few in number. All extant cephalopods are believed descended from Paleozoic …

…subclasses are Palcephalopoda (Orthoceroida; fossils); Nautiloida (fossil groups and 3–5 recent species); Ammonoida (fossils); and Coleoida (fossils and 4 recent orders). Many aspects of …

Numerous Paleozoic cephalopod species have been assigned to the "Nautiloidea" based on similarities of shell structure that they share with the chambered nautilus, especially their …

More familiar to us in the fossil record are the nautiloids, ammonoids, and belemnites. Nautiloids are the earliest cephalopods found in the fossil record, appearing by the Late Cambrian.

2023年9月18日 · A closer look at this model reveals that “nautiloids” represent a very heterogeneous, morphologically diverse group and that the early evolutionary history of …